A replaceable device designed to remove dust, pollen or other foreign matter from the air passing through it. The removal of particles is accomplished by porous, fibrous or shredded material (metallic or non-metallic) which is loosely woven or matted, the shape of which may be maintained by stiffening or binding material. It is designed to fit into a filter element, air conditioning or for direct application to air conditioners, ventilation systems, hot air furnaces, and electrical and electronic equipment which have retaining devices. It may be furnished in custom size form or in a continuous length. Excludes filtering pad, air cooler; and filtering roll, air conditioning. Excludes bulk materials not specifically designed for filtering. See also insulation blanket, thermal; plastic material, cellular; rubber sheet, cellular.
NSN 5998-00-316-6141
NSN 4140-01-315-9026
NSN 7035-01-037-7400
NSN 5920-00-172-3150
NSN 6685-00-961-9347
NSN 6220-01-019-0505
NSN 5998-01-527-3432
NSN 6130-01-350-6478
NSN 6105-01-514-7310
NSN 5950-00-203-2368
NSN 5985-01-522-9600
NSN 5996-01-633-7979